Tractor-track obliterator



R. H. GRISWOLD AND [5.1. POWELL.

TRACTOR TRACK UBLITERATORE APPLICATION FILED AuG.22, I9I9.

1,422,967. Patented J uly 18, 1922.

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RAY neiarswonn, orcnnvynnann, Ann naar. J. POWELL, or BEREA, or-rio, kassrenons ro rHnnUnin-'im COMPANY, aconronafrron or OHIO.

`'Jenofroie-franck OBLITERATOR.

`Specification of Letters atent.

Patented July i8, '192% Application 4tiled August, 1919. Serial'No. 319,069.

Be it knownthat we, ld-AY `H.'Guns-Worn and EARL el. POWELL,` citizens oiI the United States, residing)l at Cleveland and Berea, rcspertively, in the county-of Cuyahoga and State or @hic7 haveinvented Certain new and iisei'ul 'improvements in rlli'actor-'lrwk Obliterators, ol which `thefollowing is a specification. I

lhe invention relates to tractor 'track eradicators for tractorfdrawn implements, the primary object otthe invention being, as the name implies, to providea tractor dravn implementwith-separate earth working means for eiacing or obliterating the tracks lett by the tractor implement solthat no trace oif the same will be left in the cultivated soil after beingpassed over by the tillage implement.

A further object oi the invention is to provide a tractor drawn tillage implement which will not only thoroughly cultivate the soil at the rear otthe tractor, leavingno trace ol? the tractor tracks,'bntlo provide track eradicating earth working` elements whichmay be readily attached to the frame of any ordinary tractor drawn implement and readily brought into and out or' engagement with the tracks'lett bythe tractor, Vas well as yone which may be readily adapted to meet the varying demands olf actual service.

lVhile we have shown our improved device attached to a tractor drawnimplement oi' the soil pulverizingdisc type, it will oi: course be obvious that the improvements may be' readily attac-hed and conformed to soil tillinfrimplements oi varying` speciiic forms and varying;` characteristics and uses.

lVith the above mentioned and other ends in view7 the invention consists in the novel construe ti ou, arrangement and f combi nation of parts. hereinafter described, illustrated in one ot its embodiments in the accompanying' drawings and particularly pointedout in the appended claims.

Referring to the` drawings. 'forming a part of this specincation.y Figure l. is a perspective View oi an implement of the soil pulverizingdisc typek equipped with a tractor track eradicator constructed and arranged in accordance with this invention.

Fig. 9 a top plan view 'of the `same in its active or track obliterating position "attached to an ordinary tractor implement, the draw bar and traction elements being merely illustratedfor the purpose of illustrating the arrangement and lfunction oi the parts.

Similar ynumerals of reference designate like parts throughout all the iigures ot the drawings.l i y f p The tractor drawn tillage implement may be ot any suitable and convenient form and so likewise theearthworking elements thereot. In the present instance,-we `have shown our invention applied toa tillage implement of the soil pulverizer fdisc type consisting of a frame l, and earth workingelements 2, in the specific form of soil pulverizer roller discs the implement iframe l, being provided with a centr-ally vlocated draft element or draw bar 3. v

, They draft member 3,'is adapted to be attached to thetractor implement in any snitable and convenientfmanner, inthe present instance. by means oi the tractor draw bar 4, the traction elements, kbeing'somewhat diagrammatically illustratec'l and the tracks 5a, left by thelatter in. thesoil being cultivated being` indicated by reference numeral'a. y d

As a Vmeans of eliminating or obliterating the-tracks 5a, in advance ot the earth Aworking' elements of the tractor drawn implement, suitable earth working tractor track removing means are :arranged between the tractionfelements 5, `and the earth working elements of the tractordrawn implement,

said track removing or obliterating means. f

in the present instance,-comprising suitable track eradicating' elements 6. adapted to traverse and eradicate the tracks 5, said elements 6; in the present instance, comprisingspring tooth members arranged on a support 7, 1 suitably karranged between the tractor tand tillag'eimplementa said support Y, inf the present instance7 comprising a tooth carrying` bar rotatably mounted in bearing;` bracketed .'llbefbearing brackets S, maybe attached to. any suitable part of the implement frame and, in the present insta-ned are attached to the iront member ofthe 'frame and extend downiwirdly and forwardly, being detachably connected to the trame membenLby-means of bolts 8a;

Thetrack obliterating` earth working elements v6,.arepreferably adjustably anddektachably connectedto the tooth c'arr 'Yinq bar 7,"by means'oi U-bolts or clamps 7a, the open or flanged side ofthe substantially lJLshaped bar Lier-inning aconvenientsupport for the base :portions of the track Aobliterating ele- Cfr ments which in the present instance are in the jeeiiic form of spring teeth. The track obl tei-ating earth working elements 6, are adapted to be adjusted and varied to meet the varying exigencies of actual service and are preferably arranged in groups to cover the tracks a spaced apart so as to thoroughly obliterate the tracks 5a, in advance of the earth working elements of the implement, substantially as indicated in Fig. 2, of the drawings.

A s a means of bringing the elements (S, into and out of engagement with the soil cov-A ered by the tracks 53, and particularly as a means of adjusting' said elements (5, as desired, the movable supporting or bar 7, is provided near its center with an upwardly extending operating` handle 9, said handle being adapted to be held in its respective positions in any suitable and convenient manner, in the present instance, by means of an oscillatory bar 10, pivotally connected to the draw bar 3, by means of a pivot bolt 'lr a, said bar l0, being provided on its under side with a plurality of stop notches b, adapted to receive and take over a laterally extending projection or bolt 9, of the lever.

From the foregoing description, taken in connection. with the accompanying drawings, the operation and advantages of our invention will be readily understood.

Having thus described one of the enibodiments of our invention, without having attempted to set forth all the forms in which it may be made or all the modes of its use, what we claim and desire to secured by Let ters Patent, is,-

l. in a tractor track eradicator for implements, an implement including a frame ant a centrally located draft element, together with earth working elements below said frame, forwardly and downwardly extending bearing brackets detaebably secured to said frame and extending in front of said earth working elements, an oscillatory tooth carrying bar in said bearing brackets below said frame and in front of said earth working elements, a plurality of earth working tooth bars adjustably carried by said bar and spaced apart in groups to correspond with the tractor elements of the attached tractor and adapted to traverse and eradi cate the tracks thereof in front of said earth working elements of the implement, a hand lever on said tooth carrying bar extending upwardly in front of said implement frame, said hand lever extending at the side of said centrally locator draft element and being provided with a lateral projection, andL an oscillatory gravity bar on said draft bar provided on its under side with notches adapted to engage said projection of said hand lever i various positions.

2. i tractor track eradicator for tractor drawn implements, comprising forwardly and downwardly extending bearing brackets detachably secured to the front'of the frame 'of the implement, a transverse tooth carrying bar rotatably mounted in said brackets, a plurality of earth working tooth bars mounted in groups on said carrying bar and spaced apart corresponding to the space between the traction elements of the tractor and adapted to traverse and eradicate the tracks thereof, a hand lever on said tooth carrying bar extending upwardly in front of said implement frame, and an oscillatory bar provided with notches adapted to engage said hand lever in various positions when adjusted.

3. A tractor' drawn implement including a frame and a cent-rally located draft element, together with earth working elements below said frame, a plurality of forwardly and downwardly extending bearingbrackets detachably secured to said frame and extending in front of said earth working elements, an oscillatory tooth carrying bar mounted in said bearing brackets below said frame and in front of said earth working elements, a plurality of earth working tooth bars adjusta` bly carried by said bar and spaced apart in groups to correspond with the tractor elements of the tractor and adapted to traverse and eradicate the tracks thereof in front of said earth working elements of the imple ment, a hand lever on said tooth carrying bar extending upwardly in front of said implement frame, and an oscillatory bar provided with notches adapted to engage said lever lin various positions and to adjust the same.

4t. A tractor drawn implement including a frame and a centrally located draft bar, together with earth working elements below said frame, a plurality of downwardly extending bearing brackets secured to said frame and extending in front of said earth workin elements, an oscillatory tooth carrying bar removably mounted in said bearing brackets below said frame and in front of said earth working` elements. earth working tooth bars carried by said bar and spaced apart in groups to correspond with the tractor elements of the tractor and adapted to traverse and eradicate the tracks thereof in front of said earth working elements of the implement, a lever on said tooth carrying bar extending upwardly in front of said implement frame and at the side of said central draft bar and provided with a lateral projection, and an oscillatory gravity bar on said draft bar provided on its under side with notches adapted to. engage said lateral projection of said lever in various positions.,

In testimony whereof we have aflixed our signatures.

BAY H. GRSWOLD. EARL J. POWELL. 

